Answer: He is a fascist
Explanation: Fascism is based on authoritarian nationalism. This includes absolute, dictatorial power, destruction of opposition, and a great control of economic and social matters. Fascists tend to believe that typical democracy is not the best form of government, to put it lightly.
Hitler was strongly opposed to normal democratic political systems, and, most famously, Communism. His hatred and fear of the Soviet Union is easily seen within his writings and actions. He was also opposed to capitalism, believing it a manipulative tool used by the Jews.
According to the third part of Stanley G. Payne’s definition of fascism, stated in A History of Fascism, 1914–1945, most fascists used a similar style to their rule. This style included a romanticization of military service, quickly expanded militaries, and a positive view of imperialism and conflict. Also present are the glorification of masculinity, youth, and leadership.
One can see the Hitler’s glorification of masculinity, youth, and leadership in the creation and promotion of the Hitler Youth and League of German Girls. His propaganda, military build up, and war-making actions cover the others.
Thus, because of his beliefs, values, and actions, I believe it would be correct to state that Hitler was a fascist.
Hope this helps :)